A high brightness head-up display device where a spherical half-transparent mirror is provided on an upper end of a case, a projector unit is provided on a lower end thereof, and a spherical reflection screen is provided on a front of the projector unit. A projection distance of the projector unit corresponds to a focal distance of the spherical reflection screen and the spherical half-transparent mirror is provided on a front of the spherical reflection screen where a reflection rate of the spherical reflection screen is 2-80% and the interval between spherical reflection screen and the spherical half-transparent mirror is disposed at a focal distance of the spherical half-transparent mirror. A shielding film is attached to a rear of the spherical half-transparent mirror, which shields external light and permits 80% of light to be transmitted to outside from inside.
High Brightness Head-up Display Device
2015-08-26
Patent
Electronic Resource
English
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien |
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